ABPX1101

Advanced Programmable Clock

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/15/05 Page 1

FEATURES

• Advanced programmable PLL design

• Very low Jitter and Phase Noise (30-70ps Pk-Pk typical)

• Up to 3 programmable outputs

• Two registers banks for 2-time programming.

• Output frequency up to 200MHz CMOS.

• Accepts Crystal or reference clock inputs

o

Fundamental crystal: 10MHz-30MHz

o

o

Reference input: Up to 200MHz

• Accepts <1.0V reference signal input voltage

• One programmable I/O pin can be configured as

Programmable clock, or Frequency Selection input,

or output Enable (OE) or Power Down (PDB) input.

• Single 2.5V or 3.3V ± 10% power supply

• Operating temperature range from -40°C to 85°C

• Available in 8-pin MSOP/SOIC, and 6-pin SOT

PIN CONFIGURATION

1

2

3

45

6

7

8

XIN/FIN

GND

CLK0

CLK1

XOUT

NC

VDD

CLK2,OE,PDB,FSEL

1

2

34

5

6

CLK0

GND

XIN/FIN

VDD

XOUT

CLK2,OE,PDB,FSEL

SOP-8

MSOP-8

SOT-23

DESCRIPTION

The ABPX1101 is a low-cost general purpose frequency synthesizer and a member of Abracons’ Advanced

Programmable Clock family. Abracon’s ABPX1101 product family offers the versatility of using a single Crystal or

Reference Clock input and producing up to three different system clocks. They can generate any output

frequency up to 200 MHz from fundamental crystal input between 10 MHz - 30 MHz, or a 3rd overtone crystal of

up to 75Mhz, or a Reference clock input of up to 200 MHz. Cascading of the ICs to produce additional clock

frequencies is also supported.

BLOCK DIAGRAM

Phase

Detector

Charge

Pump

Loop

Filter

VCO

Selectable

/1,/2,/4,/8

Selectable

/1,/2

Xtal

OSC

XIN/FIN

XOUT

P-counter

(5-bit)

M-counter

(10-bit)

R-counter

(8-bit)

FRef

OE

FSEL

PDB

Programmable Function

CLoad

CLOCK[0:2]